/*FUNCTION****************************************************************
*
* Function Name : _rtc_init
* Returned Value : MQX error code
* Comments :
* This function (re)initializes/clears/enables RTC module.
* If cleared, alarm happens after RTC overflow, stopwatch happens next minute.
* Reset disables and clears all interrupts and stopwatch (even if cleared).
*
*END*********************************************************************/
uint_32 _rtc_init
(
/* [IN] flags identifying init operations */
uint_32 flags
)
{
uint_32 result = MQX_OK;
RTC_MemMapPtr rtc = RTC_BASE_PTR;
/* Clear time, alarm and stopwatch, if requested */
if (flags & RTC_INIT_FLAG_CLEAR)
{
_int_disable();
/* Resets all RTC registers except for SWR bit. */
rtc->CR |= RTC_CR_SWR_MASK;
alarm_time.seconds = 0;
sw_time.seconds = 0;
user_enables = 0;
user_requests = 0;
rtc->CR &= ~RTC_CR_SWR_MASK;
rtc->TAR = 0xFFFFFFFF; /* e2574: RTC: Writing RTC_TAR[TAR] = 0 does not disable RTC alarm */
rtc->TSR = 1;
_int_enable();
}
/* reset current user interrupt state and callback, if requested */
if (flags & RTC_INIT_FLAG_RESET)
{
_int_disable();
/* Resets all RTC registers except for SWR bit. */
rtc->CR |= RTC_CR_SWR_MASK;
rtc->CR &= ~RTC_CR_SWR_MASK;
rtc->TSR = 1;
user_enables = 0;
user_requests = 0;
_int_enable();
}
/* install HW interrupt and run the RTC, if requested */
if (flags & RTC_INIT_FLAG_ENABLE)
{
/* disable reset RTC */
if( rtc->CR & RTC_CR_SWR_MASK )
{
rtc->CR &= ~RTC_CR_SWR_MASK;
}
/* wk@130510 --> */
/* default */
// if (NULL == _int_install_isr (INT_RTC, _rtc_isr, (pointer)rtc))
// {
// result = _task_get_error ();
// }
/* wk */
if (NULL == _int_install_isr (INT_RTC, _rtc_isr_app, (pointer)rtc))
{
result = _task_get_error ();
}
/* end */
if (MQX_OK == result)
{
if( !(rtc->SR & RTC_SR_TCE_MASK) || !(rtc->CR & RTC_CR_OSCE_MASK) )
{
rtc->CR |= RTC_CR_OSCE_MASK;
/* recommended 125 ms delay for oscillator start */
_rtc_wait_ms(125);
rtc->TAR=rtc->TSR; // wk@130405 -->
rtc->SR |= RTC_SR_TCE_MASK;
}
_bsp_int_init(INT_RTC, BSP_RTC_INT_LEVEL, 0, TRUE);
}
}
#if PSP_MQX_CPU_IS_KINETIS_K70
/* Enable monotonic counter */
RTC_MER = RTC_MER_MCE_MASK;
#if 0
/* Enable Tamper */
RTC_TER = (RTC_TER_TME_MASK | \
RTC_TER_VTE_MASK | \
RTC_TER_CTE_MASK | \
RTC_TER_TTE_MASK | \
RTC_TER_FSE_MASK | \
RTC_TER_TME_MASK);
#else
/* Disable all tampers */
RTC_TER = 0;
#endif
#endif
return result;
}
/*FUNCTION****************************************************************
*
* Function Name : _rtc_init
* Returned Value : MQX error code
* Comments :
* This function (re)initializes/clears/enables RTC module.
* If cleared, alarm happens after RTC overflow, stopwatch happens next minute.
* Reset disables and clears all interrupts and stopwatch (even if cleared).
*
*END*********************************************************************/
uint_32 _rtc_init
(
/* [IN] flags identifying init operations */
uint_32 flags
)
{
uint_32 result = MQX_OK;
RTC_MemMapPtr rtc = RTC_BASE_PTR;
/* Clear time, alarm and stopwatch, if requested */
if (flags & RTC_INIT_FLAG_CLEAR)
{
_int_disable();
/* Resets all RTC registers except for SWR bit. */
rtc->CR |= RTC_CR_SWR_MASK;
alarm_time.seconds = 0;
sw_time.seconds = 0;
user_enables = 0;
user_requests = 0;
rtc->CR &= ~RTC_CR_SWR_MASK;
rtc->TAR = 0xFFFFFFFF; /* e2574: RTC: Writing RTC_TAR[TAR] = 0 does not disable RTC alarm */
rtc->TSR = 1;
_int_enable();
}
/* reset current user interrupt state and callback, if requested */
if (flags & RTC_INIT_FLAG_RESET)
{
_int_disable();
/* Resets all RTC registers except for SWR bit. */
rtc->CR |= RTC_CR_SWR_MASK;
rtc->CR &= ~RTC_CR_SWR_MASK;
rtc->TSR = 1;
user_enables = 0;
user_requests = 0;
_int_enable();
}
/* install HW interrupt and run the RTC, if requested */
if (flags & RTC_INIT_FLAG_ENABLE)
{
/* disable reset RTC */
if( rtc->CR & RTC_CR_SWR_MASK )
{
rtc->CR &= ~RTC_CR_SWR_MASK;
}
if (NULL == _int_install_isr (INT_RTC, _rtc_isr, (pointer)rtc))
{
result = _task_get_error ();
}
if (MQX_OK == result)
{
if( !(rtc->SR & RTC_SR_TCE_MASK) || !(rtc->CR & RTC_CR_OSCE_MASK) )
{
rtc->CR |= RTC_CR_OSCE_MASK;
/* recommended 125 ms delay for oscillator start */
_rtc_wait_ms(125);
rtc->SR |= RTC_SR_TCE_MASK;
}
_bsp_int_init(INT_RTC, BSP_RTC_INT_LEVEL, 0, TRUE);
}
}
return result;
}
